Apparatus for regulating the level of liquid.



K. GROSSWYLER,

Patented July ll, I899.

APPARATUS FOR BEGULATING T-HE LEVEL OF LIQUID;

(Apylication filed Feb. 28, 1899.)-

(Ilo Model.)

f H W L i H W THE unnms PETERS 00., PnoYoLrma, WASHINGTON, n c.

UNITED ST TES P TENT OFFICE.

KILIAN GROSSWVYLER, OF ZURICH, SVITZERLAND.

APPARATUS FOR REGULATlNG-THE LEVEL OF LIQUID.

SPECIFICATION forming part 9f Letters Patent No. 628,581, dated July 11,1899.

Application filed February 28,1899. Serial No. 707,207. (No model.)

To all whom it may concern:

Be it known that I, KILIAN GROSSWYLER, 1

a citizen of the Republic of Switzerland, and a resident of Zurich,Switzerland, have invented certain new and useful improvements inapparatus to regulate automatically the level of liquid of a supplyvessel corresponding to the consumption of the liquid, (for which Iapplied for a patent in Switzerland on the 24th of December, 1898; inGermany on the 9th of January, 1899; in Austria on the 9th of January,1899; in Belgium on the 9th of January, 1899; in Italy on the 9th ofJanuary, 1899; in France on the 12th of January, 1899; in Hungary on the14th of J anuary, 1899; in Spain on the 16th of January,

1899; in Great Britain on the 19th of January, 1899, and in Russia onthe 23d of January,

1899,) of which the following isa specification.

The present invention relates to an apparatus to regulate automaticallythe level of liquid of a supply vessel corresponding to the consumptionof the liquid.

The preferred method of construction of this apparatus is shown in theinclosed drawing in vertical section.

The vessel in which the liquid is to be continually maintained at aboutthe'same level is shown at a. This vessel is connected with a specialvessel 6, which is divided into an upper compartment 1) and a lowercompartment b by a partition I). The partition 11 is penetrated by atube 0, which projects sufliciently far up into the upper compartmentfor themouth of the tube or pipe 0 to lie above the level of the liquidwhen the upper compartment is as full as it will hold, while the lowerend a communicates with the atmosphere of the lower compartment, so thata constant equalization of the pressure of air over the liquid in thecompartments 1) and 1) takes place. A tubular conductor his fastenedinto the partition. The largest part of this conductor is placed in thecompartment I). Only the upper end of the conductor, which has the shapeof a tubular projection of less diameter than the rest of it, passesthrough the partition t and projects into the upper compartment. Aconnection between the upper and lower compartments is thus formedthrough which the liquid can flow from the former to the latter when thelower opening h of theshort pipe his free. The part 77. serves as guidefor a cylindrical body 70, which is hollow throughout and goes nearlyits entire length and is fastened to a float Z, and the upper end ofwhich, is in the form of a cone. This end serves as a valve for shuttingthe lower aperture 71 of the short pipe h.

Between the vessel a and the lower compartment b a double communicationexists. One connected at the level of the liquid 1) will be maintainedconstant in the vessel ct, while the other is placed higher up toconnect the airspace in vessel a and that in the compartment b with oneanother. The conducting-pipe (2 serves to carry liquid from thecompartment b into the vessel a,'whi1e the pipe fequalizes the pressurebetween the vessel a and the compartment 19 The vessel is furnished witha valve 9 to let in air, so that when through the flowing out of theliquid through the outlet-cock 11 the level of the liquid in the vesselor lowers, and thereby the air-pressure in vessel or is reduced, air canbe admitted through the valve 9 by the atmospheric surplus pressure. If,then, through the consumption of liquid the level of the liquid invessel a sinks, a corresponding volume of air is admitted through thevalve g into the vessel. This air distributes itself by the pipes f ande to all parts of the apparatus, so that equal pressure over all iscontinually maintained. Consequently the level of the liquid in thecompartment D together with the float Z, sinks with the consumption ofliquid in the vessel a, whereby the lower mouth of the short pipe hbecomes released. A corresponding quantity of liquid can therefore flowfrom the compartment 1) into the compartment 19 until the level ofliquid in the latter again rises to the same height as before, at whichinstant the mouth of the short pipe h closes again. The operationcontinues in this manner with the liquid constantly maintaining itselfuniform in the vessel a, and in' the compartment 1) until all the liquidin the upper store-compartment is finally consumed or has reached theupper aperture of the short pipe it".

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is- 1. 1 Apparatus for the automatic regulation of thelevel of liquid in a supply vessel so as to correspond to theconsumption of vthe liquid, characterized by a special vessel 1) with areceiving-chamber b above, containing the store of liquid, and a lowerchamber b -which two chambers are separated from one another by ahermetically-closed partition b andin which in the lower chamber 6 (inwhich the same level as that in the supply vessel is to be maintained)there is a float which is provided with a closing device for an opening:in the aforesaid partition 19 for the exit of 5 theliq'uid, andin whichbetween the lower cdmpajrtmett b and the upper space of the topcompartment 1) an air-pipe is arranged so that the pipe projects abovethe highest level f of the liquid in the upper orstorech ambe'r b.

2.. Apparatus for the antematicregulation of the level of liquidcorresponding to thefic'onsumption of liquid in a vessel to be suppliedwith liquid characterized by a special vessel 1 with upper.i'eceiviligrchamber 6 taking up the store of liquid, and a lower chamber5 which two chambers areseparatedfrom each other by 'ahermetically-closed partition b and in which a pressure-equalizing pipe0 is between the lower chamber and the upper space of the top chamber,and in the lower chamber afloat with a guide It having a conical end Itenters in the lower opening H of the partition 17 and leavesthe openingmore or less free according to the level of the liquid in the lowerchamber.

3. Apparatus forthe automatic regulation of the level of liquid in asupply vessel so as to correspond with the consumption of the liquid,characterized by the provision of a special vessel 1) with an upperchamber b receiving the liquid, and a lower chamber 1) which twochambers are separated from each other by a hermetically-closedpartition I)" with a float in the lower chamber which is provided with aclosing device foran opening in the said partition, and with a pressureequalizing pipe 0 between the lowerchamber and the top compartment ofthe upper cham

